/*
 * Copyright (c) 2019 The StreamX Project
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.streamxhub.streamx.flink.core.scala.failover

import com.streamxhub.streamx.common.conf.ConfigConst._
import com.streamxhub.streamx.common.util.ConfigUtils
import com.streamxhub.streamx.flink.core.scala.failover.FailoverStorageType.{FailoverStorageType, HBase, HDFS, Kafka, MySQL}

import java.util.Properties
import scala.collection.JavaConversions._
import scala.collection.JavaConverters._
import scala.util.Try

case class ThresholdConf(parameters: Properties) {

  val bufferSize: Int = Try(parameters(KEY_SINK_THRESHOLD_BUFFER_SIZE).toInt).getOrElse(DEFAULT_SINK_THRESHOLD_BUFFER_SIZE)
  val queueCapacity: Int = Try(parameters(KEY_SINK_THRESHOLD_QUEUE_CAPACITY).toInt).getOrElse(DEFAULT_SINK_THRESHOLD_QUEUE_CAPACITY)
  val delayTime: Long = Try(parameters(KEY_SINK_THRESHOLD_DELAY_TIME).toLong).getOrElse(DEFAULT_SINK_THRESHOLD_DELAY_TIME)
  val timeout: Int = Try(parameters(KEY_SINK_THRESHOLD_REQ_TIMEOUT).toInt).getOrElse(DEFAULT_SINK_REQUEST_TIMEOUT)
  val successCode: List[Int] = Try(parameters(KEY_SINK_THRESHOLD_SUCCESS_CODE).split(",").map(_.toInt).toList).getOrElse(List(DEFAULT_HTTP_SUCCESS_CODE))
  val numWriters: Int = Try(parameters(KEY_SINK_THRESHOLD_NUM_WRITERS).toInt).getOrElse(DEFAULT_SINK_THRESHOLD_NUM_WRITERS)
  val maxRetries: Int = Try(parameters(KEY_SINK_THRESHOLD_RETRIES).toInt).getOrElse(DEFAULT_SINK_THRESHOLD_RETRIES)
  val storageType: FailoverStorageType = FailoverStorageType.get(parameters.getOrElse(KEY_SINK_FAILOVER_STORAGE, throw new IllegalArgumentException(s"[StreamX] usage error! failover.storage must not be null! ")))

  def getFailoverConfig: Properties = {
    storageType match {
      case Kafka => ConfigUtils.getConf(parameters.toMap.asJava, "failover.kafka.")
      case MySQL => ConfigUtils.getConf(parameters.toMap.asJava, "failover.mysql.")
      case HBase => ConfigUtils.getConf(parameters.toMap.asJava, "failover.hbase.", HBASE_PREFIX)
      case HDFS => ConfigUtils.getConf(parameters.toMap.asJava, "failover.hdfs.")
    }
  }
}

object FailoverStorageType extends Enumeration {
  type FailoverStorageType = Value
  val MySQL, HBase, HDFS, Kafka = Value

  def get(key: String): Value = values.find(_.toString.equalsIgnoreCase(key)).get
}
